Home / 127,056.28-175,409.40-86,828.44

Finding the Fourth Proportional to 127,056.28, 175,409.40 and 86,828.44

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Solution

The fourth proportional to 127,056.28, 175,409.40 and 86,828.44 is: 119,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,056.28 : 175,409.40 = 86,828.44 : x
  2. Step 2: Convert to fraction form
    127,056.28/175,409.40 = 86,828.44/x
  3. Step 3: Cross multiply
    127,056.28x = 175,409.40 × 86,828.44
  4. Step 4: Simplify right side
    127,056.28x = 15,230,524,563.34
  5. Step 5: Solve for x
    x = 15,230,524,563.34/127,056.28
  6. Step 6: Final answer
    x = 119,872.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.